A162268 - cp's OEIS frontend

A162268 a(n) = ((5+sqrt(2))(1+sqrt(2))^n + (5-sqrt(2))(1-sqrt(2))^n)/2.

n	a(n)
0	5
1	7
2	19
3	45
4	109
5	263
6	635
7	1533
8	3701
9	8935
10	21571
11	52077
12	125725
13	303527
14	732779
15	1769085
16	4270949
17	10310983
18	24892915
19	60096813
20	145086541
21	350269895
22	845626331
23	2041522557
24	4928671445
25	11898865447
26	28726402339
27	69351670125

[5, 7, 19, 45, 109, 263, 635, 1533, 3701, 8935, 21571, 52077, 125725, 303527, 732779, 1769085, 4270949, 10310983, 24892915, 60096813, 145086541, 350269895, 845626331, 2041522557, 4928671445, 11898865447, 28726402339, 69351670125]

cp's OEIS Frontend

A162268 a(n) = ((5+sqrt(2))(1+sqrt(2))^n + (5-sqrt(2))(1-sqrt(2))^n)/2.

Table of values

List of values

cp's OEIS Frontend

A162268 a(n) = ((5+sqrt(2))*(1+sqrt(2))^n + (5-sqrt(2))*(1-sqrt(2))^n)/2.

Table of values

List of values

A162268 a(n) = ((5+sqrt(2))(1+sqrt(2))^n + (5-sqrt(2))(1-sqrt(2))^n)/2.